Are there nonstop flights from Ontario (ONT) to New York (JFK)?

Yes. JetBlue Airways fly this route. Flight time is about 5h 5m.

What is the fastest connection from Ontario (ONT) to New York (JFK)?

via Chicago ≈ 5h 37m, via Denver ≈ 5h 37m, via Las Vegas ≈ 5h 37m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

Ontario International Airport (ONT) to John F. Kennedy International Airport (JFK)・3,901 km

Nonstop flights available (1 airline). Flight time about 5h 5m. Nonstop return flights also operate.

With milesJAL 23,000 miles+ (via PHX)Economy, one way, estimate. Tap a connection for miles by cabin.

16 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.